KPIV (Key Process Input Variable) Explained

A key process input variable (KPIV) refers to the most important process input(s) and different factors that significantly impact the output variation of a process, system, or the key process output variable (KPOV) of a product. Hence, KPIV is the factor that determines the KPOV or product/process output quality. Keeping the KPIV constant yields a predictable and consistent output.